RDK-848: 42W Total, 5V @ 2.4A and 5 ~ 20V @ 3 ~ 1.5A, 90 ~ 265VAC

Summary

RDK-848 is a 42 W dual USB port switching power supply for wall outlet and power strip pad application. The main power supply is an isolated flyback controlled by INN3379C InnoSwitcw3-Pro. It is designed to deliver 30 W USB PD 3.0 (USB Type-C) and at the same time, provide DC input supply for 5 V / 2.4 A output (USB Type-A) DC/DC converter.

InnoSwitch3-Pro is a highly integrated digitally controllable quasi-resonant flyback switcher IC designed for high efficiency USB PD 3.0 application. It integrates a highvoltage switch, primary and secondary side control and fluxLink feedback which simplifies the development of fully programmable, highly efficient power supplies, particularly those in compact enclosures. InnoSwitch3-Pro has built-in 3.3 V linear regulator that provides a bias supply for the microprocessor in stand-alone implementations. The IC uses the universal I2C interface that enables dynamic control of output voltage and current along with many configurable features.

RDK-848 offers low component count and heat sink-less design for compact enclosure applications. The key design goals were high efficiency and compact design.

Specifications

Manufacturer	Power Integrations
Category	Power Management
Sub-Category	USB Power Delivery
Eval Board Part Number	596-RDK-848-ND
Eval Board Supplier	Power Integrations
Eval Board	Board not Stocked
Port Role	Source
Voltage In	90 ~ 265 VAC
Voltage Out	5 V 9 V 12 V 15 V 20 V
Port Current	1.5 A 2 A 2.4 A 2.5 A 3 A
Power Out	12 W (Type A Port) 30 W (Type C Port) 42 W
Features	Over Current Protection (OCP) Over Voltage Protection (OVP) Short Circuit Protection Thermal Protection
No-load Input Power @ Voltage	< 55 mW @ 115 VAC < 60 mW @ 230 VAC
Compliance	USB Power Delivery 3.0
Efficiency @ Conditions	>90%, 230V in, 9V @ 15 ~ 30 W >90%, 230V in, 12V @ 15 ~ 30 W >89%, 230V in, 20V @ 18 ~ 30 W >89%, 230V in, 15V @ 12 ~ 30 W >89%, 115V in, 9V @ 3 ~ 30 W >89%, 115V in, 15V @ 15 ~ 30 W >89%, 115V in, 12V @ 9 ~ 30 W >88%, 230V in, 5V @ 3 ~ 27 W >88%, 115V in, 5V @ 3 ~ 30 W >88%, 115V in, 20V @ 15 ~ 30 W
Component Count + Extras	73 + 2
Design Author	Power Integrations
Main I.C. Base Part	INN3379C
Date Created By Author	2020-07
Date Added To Library	2020-09